The 2015 Epic Reads Young Adult Gift Buying Guide. I like how it breaks down these books by genres to give you a better idea what they are about. This could be used for display ideas, and the covers will appeal to the students.
Whether you're a Swords and Sorcery type of fantasy reader, a fan of battles and betrayal, or you just want a few more goddamn elves in your life, there's something for you here. These are the truly great fantasy series written in the last 50 years.